1 .统计研究设计 :应交代统计研究设计的名称和主要方法。如调查设计 (分为前瞻性、回顾性调查研究 ) ,实验研究 (应交代具体的设计类型 ,如自身配对设计、成组设计、交叉设计、析因设计、正交设计等 ) ,临床试验设计 (应交代属于第几期临床试验 ,采用了何种盲法措施等 )。主要 1.Statistical Research Design: The name and main method of statistical research design should be presented. Such as survey design (divided into prospective, retrospective investigation), experimental research (specific design types should be presented, such as self-matching design, group design, cross design, factorial design, orthogonal design, etc.), clinical trial design (Should be submitted to the first few clinical trials, what kind of blind measures used). main